动态申请权限

• 单个权限检查

RxPermissions permissions = new RxPermissions(this);
boolean isGranted = permissions.isGranted(Manifest.permission.WRITE_EXTERNAL_STORAGE);

• 单个权限request

RxPermissions permissions = new RxPermissions(this);
Disposable disposable = permissions.request(Manifest.permission.WRITE_EXTERNAL_STORAGE)
        .subscribe(new Consumer<Boolean>() {
            @Override
            public void accept(Boolean granted) throws Exception {
                if (granted) {
                    //权限被允许
                } else {
                    //权限被拒绝
                }
            }
        });

• 单个权限request：由点击事件调起

RxPermissions rxPermissions = new RxPermissions(activity);
Disposable disposable = RxView.clicks(findViewById(R.id.tv_temp2))
        .compose(rxPermissions.ensure(Manifest.permission.WRITE_EXTERNAL_STORAGE))
        .subscribe(new Consumer<Boolean>() {
            @Override
            public void accept(Boolean granted) throws Exception {
                Logger.e(granted + "！");
            }
        });

• 多个权限：依次申请-同时返回且不知道有没有勾选“禁止后不再询问”

RxPermissions rxPermissions = new RxPermissions(activity);
Disposable disposable = rxPermissions.request(
        Manifest.permission.WRITE_EXTERNAL_STORAGE,
        Manifest.permission.CAMERA,
        Manifest.permission.RECORD_AUDIO,
        Manifest.permission.READ_PHONE_STATE)
        .subscribe(new Consumer<Boolean>() {
            @Override
            public void accept(Boolean granted) throws Exception {
            }
        });

• 多个权限：依次申请-依次返回

RxPermissions rxPermissions = new RxPermissions(activity);
Disposable disposable = rxPermissions.requestEach(
        Manifest.permission.WRITE_EXTERNAL_STORAGE,
        Manifest.permission.CAMERA,
        Manifest.permission.RECORD_AUDIO,
        Manifest.permission.READ_PHONE_STATE)
        .subscribe(new Consumer<Permission>() {
            @Override
            public void accept(Permission permission) throws Exception {
                if (permission.granted) {
                    //权限被允许
                    Logger.e(permission.name + " is granted！");
                } else if (permission.shouldShowRequestPermissionRationale) {
                    //权限被拒绝，未勾选“禁止后不再询问”
                    Logger.e(permission.name + " is denied without ask never again");
                } else {
                    //权限被拒绝，勾选了“禁止后不再询问”
                    Logger.e(permission.name + " is denied with ask never again");
                }
            }
        });

• 多个权限：依次申请-同时返回

RxPermissions rxPermissions = new RxPermissions(activity);
Disposable disposable = rxPermissions.requestEachCombined(
        Manifest.permission.WRITE_EXTERNAL_STORAGE,
        Manifest.permission.CAMERA,
        Manifest.permission.RECORD_AUDIO,
        Manifest.permission.READ_PHONE_STATE)
        .subscribe(new Consumer<Permission>() {
            @Override
            public void accept(Permission permission) throws Exception {
                if (permission.granted) {
                    //所有权限被允许
                } else if (permission.shouldShowRequestPermissionRationale) {
                    //至少一个权限被拒绝，且未勾选“禁止后不再询问”
                    Logger.e(permission.name + " is denied without ask never again");
                } else {
                    //至少一个权限被拒绝，勾选了“禁止后不再询问”
                    Logger.e(permission.name + " is denied with ask never again");
                }
            }
        });